Correct

成日

/ chéng rì / 
Strokes

Definition

all day long/the whole day/the whole time

Example

As a Noun

whole day; all day long; all the time

1
Wǒmen
我们
chéngrì
成日
zuò
做
tóngyàng
同样
de
的
shìqing
事情
jiù
就
huì
会
gǎndào
感到
yànjuàn
厌倦
  
,
zhè
这
háobù
毫不
qíguài
奇怪
  
。

It isn't surprising we get bored if we do the same things day after day.

2
Tā
他
chéng
成
rì
日
gàn
干
zhāo
着
tóngyàng
同样
de
的
gōngzuò
工作
  
。

He has been doing the same work day in, day out.

3
Tā
他
chéngrì
成日
wúsuǒshìshì
无所事事
  
。

He has been doing nothing all day long. / He accomplishes nothing out of his days.

4
Chéngrì
成日
mánglù
忙碌

be busy all day long

5
Chéngrì
成日
bù
不
zàijiā
在家

be away from home day in, day out; be out all the time